November 1999
Intermediate to advanced
736 pages
22h 46m
English
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Commercial HA Solutions
High-availability products have been maturing rapidly over the last couple of years and are becoming a standard in disaster recovery configurations. These solutions can alleviate the problems that occur when a server and/or application crashes, by having a fail-over server ready for such a circumstance. Commercial HA solutions provide readily available tools to configure systems in the HA fashion, saving you time and implementing a supported environment.
Currently Available HA Products
There are many competitive high-availability software products on the market today; deciding which one to purchase can be tough. The following list of features is a quick take on the types of questions to ask your potential HA vendor:
- Clustering capability
How many servers can be clustered together? If more than two servers, can any server fail over to any other server?
- Load-balancing capability
If two servers are serving the same function in an HA configuration, can the application’s load be easily distributed between them?
- Application-level recovery
What applications have been tested with this configuration? If servers fail over but applications can’t, you really haven’t gained anything.
- Intelligent monitoring
Does a central station monitor and report on HA clusters? Are SNMP traps or any other monitoring via the system management framework supported?
- Centralized management capability
Can multiple nodes of an HA cluster or multiple HA clusters be monitored from a central location? ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.